Developers don't work in a vacuum, it's hard to just use a little bit of that paradigm here and a little bit of the other paradigm there. You do need to plan

Developers don't work in a vacuum, it's hard to just use a little bit of that paradigm here and a little bit of the other paradigm there. You do need to plan your career and pick the winning paradigm/stacks because you need to invest significant amounts of time in mastering them.